Cadillac XT4 I (2018-2023) red/gry Wiring diagrams

BATT POS VOLT BLK WIRE BLU/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR DRIVER SIDE OBJECT DETECTION INDICATOR GRN WIRE GROUND GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT SIDE OBJECT SENSOR MODULE LH SIDE LED CTRL LOW SPEED GMLAN SERIAL DATA PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER SIDE OBJECT DETECTION INDICATOR POWER SUPPLY TRANSFORMER RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RH SIDE LED CTRL RIGHT SIDE OBJECT SENSOR MODULE SIDE OBJ DETEC CAN SERIAL DATA (-) SIDE OBJECT DETECTION CAN SERIAL DATA (-) SUPPLY VOLTAGE 1 UNDERHOOD FUSE BLOCK WHT WIRE

ACC LED SIG ACTUATOR CTRL ACTUATOR RECEIVE SIG ACTUATOR TRANSMIT SIG AMBIENT LIGHT SENS SIG ANTI-LOCK BRAKES, CRUISE CONTROL SYSTEMS ANTI-LOCK BRAKES, ENGINE CONTROLS, TRANSMISSIONS SYSTEMS AUTO STOP START INDICATOR CTRL AUTO STOP START SW SIG BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRK APPLY SENS CTRL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRN WIRE BRN/BLU WIRE BRN/WHT WIRE BRN/YEL WIRE COLUMN LOCK STATUS SIG COMPUTER DATA LINES SYSTEM CRUISE/ETC/TCC/BRAKE SIG DIMMER SW LOW REF DIMMER SW SIG DOME LP OFF INDICATOR CTRL DOOR LOCKS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT, SHIFT INTERLOCK SYSTEMS ENGINE CONTROLS, STARTING/CHARGING, TRANSMISSIONS SYSTEMS EXTERIOR LIGHTS, ANTI-THEFT, INTERIOR LIGHTS SYSTEMS GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE GRY/YEL WIRE HAZARD SW SIG HDLP SW OFF SIG CTRL HDLP SW ON SIG HDLP SW PARK LAMP SIG HEADLAMP LOW BEAM RLY CTRL HEADLIGHTS SYSTEM HI SPD GMLAN SERIAL DATA (-) (1) HIGH BEAM AUTO ON/OFF SW SIG WIRELESS CHARGING SYSTEM FAULT INDICATOR CTRL HORN RLY CTRL HORNS SYSTEM INTERIOR LIGHTS SYSTEM HOT AT ALL TIMES IGN MODE SW MODE VOLT IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK INTERIOR LAMP CTRL INTERIOR LAMP DEFEAT SW SIG INTERIOR LIGHTS, ENGINE CONTROLS, STARTING/CHARGING, TRANSMISSIONS SYSTEMS INTERIOR LIGHTS, STARTING/CHARGING SYSTEMS LED AMBIENT LIGHTING CTRL 2 LED BACKLIGHT DIMMING CTRL LEFT CORNERING LP CTRL LEFT TRAILER TURN SIG LP CTRL LF TURN SIG LP CTRL LIN SERIAL DATA BUS 4 LOW SPD GMLAN SERIAL DATA LR STOP LP CTRL LR TURN SIG LP CTRL PARK LP RELAY CTRL POWER DISTRIBUTION SYSTEM REAR FOG LAMP SWITCH SIGNAL REAR WINDOW WASHER RLY CTRL REAR WINDOW WIPER SW SIG RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RF DRL CONTROL RIGHT CORNERING LP CTRL RIGHT TRAILER TURN SIG LP CTRL SECURITY IND CTRL SIG GND START LED SIG TRACTION CTRL SW SIG 1 VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/VIO WIRE WIPER SW HI SIG WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM EXTERIOR LIGHTS SYSTEM YEL WIRE YEL/GRY WIRE YEL/WHT WIRE

AIR IONIZER (ENGINE COMPARTMENT, IN HVAC HOUSING) BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE COMMUNICATION ENABLE DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DRIVER SEAT BOLSTER MEMORY CONTROL MODULE DRIVER SEAT MASSAGE SWITCH GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/GRN WIRE HI SPD GMLAN HI SPD GMLAN SERIAL DATA (+) 8 HI SPD GMLAN SERIAL DATA (+) 9 HI SPD GMLAN SERIAL DATA (-) 11 HI SPD GMLAN SERIAL DATA (-) 12 HI SPD GMLAN SERIAL DATA (-) 13 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROL MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN LO SPD GMLAN SERIAL DATA LO SPD GMLAN SERIAL DATA 2 LO SPD GMLAN SERIAL DATA 3 LOCAL INTERCONNECT LOCAL INTERCONNECT NETWORK BUS 19 LOGIC NETWORK BUS 13 NETWORK BUS 19 ORG/ WIRE RED/GRY WIRE RED/VIO WIRE SERIAL DATA SERIAL DATA 2 SERIAL DATA GATEWAY MODULE SIG GND STEERING COLUMN LOCK MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATING CONTROL MODULE UNDERHOOD FUSE BLOCK VIO/GRY WIRE W/ MASSAGE SEAT WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE

BATT POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLU WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/YEL WIRE BOLSTER CTRL RTN BOLSTER PMP CTRL BRN/BLK WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER SEAT BOLSTER MEMORY CONTROL MODULE DRIVER SEAT FRONT VERTICAL MOTOR DRIVER SEAT HORIZONTAL MOTOR DRIVER SEAT LUMBAR SUPPORT MOTOR DRIVER SEAT LUMBAR/ BOLSTER PUMP DRIVER SEAT MASSAGE SWITCH (W/ MASSAGE SEAT CONTROL) DRIVER SEAT MEMORY CONTROL MODULE DRIVER SEAT MEMORY SWITCH DRIVER SEAT REAR VERTICAL MOTOR DRIVER SEAT RECLINE MOTOR FRT VERT MTR DOWN CTRL FRT VERT MTR UP CTRL GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HORIZ MTR FWD CTRL HORIZ MTR RWD CTRL HOT AT ALL TIMES LOGIC LOW SPD GMLAN SERIAL DATA LUMBAR MTR FWD CTRL LUMBAR MTR RWD CTRL REAR VERT MTR DOWN CTRL REAR VERT MTR UP CTRL RECLINE MTR FWD CTRL RECLINE MTR RWD CTRL RED/GRY WIRE SER DATA BUS 13 SERIAL DATA BUS 13 SERIAL DATA BUS 8 SET SWITCH UNDERHOOD FUSE BLOCK VIO WIRE W/ 2 WAY LUMBAR W/ MASSAGE SEAT CONTROL WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE

ACC IGN VOLT ACTIVE SIG ACTR CTRL ACTR RECEIVE ACTR TRANSMIT AMBIENT LIGHT/SUNLOAD SENSOR BATT POS VOLT BLK WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRN WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DR LK ACTR LK CTRL DR LK ACTR UNLK CTRL DR LK ACTR UNLK CTRL 2 DRIVER DOOR LOCK SWITCH DRV DR LK SW LK SIG DRV DR LK SW UNLK SIG FUEL DR LK RLY CTRL GND STEERING COLUMN LK STATUS SIGNAL GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRY WIRE GRY/WHT WIRE HOOD STATUS B SIG HOT AT ALL TIMES HVAC CONTROL MODULE IGN MODE SW START LED SIG LO REF LO SPD GMLAN SERIAL DATA LOGIC NETWORK BUS 2 PASS DR LK SW LK CTRL PASS DR LK SW UNLK CTRL PASSENGER DOOR LOCK SWITCH POWER SOUNDER CONTENT THEFT DETERRENT ALARM MODULE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE FUNCTION ACTR CTRL REMOTE FUNCTION ACTR RECEIVE SIG REMOTE FUNCTION ACTR TRANSMIT SIG RUN/CRANK IGN 1 VOLT SECURITY IND CTRL SIG SOLAR SENS STEERING COLUMN LOCK MODULE UNDERHOOD FUSE BLOCK VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/GRN WIRE YEL/VIO WIRE

ALERT LED CTRL BATT POS VOLT BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE BRN/BLU WIRE COLLISION ALERT INDICATORS COLLISION ALERT SWITCH COMM ENABLE COMPUTER DATA LINES SYSTEM DAY LED CTRL ETHERNET BUS 7 (-) FORWARD COLLISION ALERT SWITCH GRN WIRE GROUND GRY WIRE GRY/GRN WIRE GRY/WHT WIRE HI SPD GMLAN (-) 1 HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE WARNING ASSIST IND LANE DEPARTURE WARNING ASSIST SWITCH LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT STEERING WHEEL CONTROLS SWITCH LO SPD GMLAN SERIAL DATA LOGIC LOW SPEED GMLAN SERIAL DATA 2 LT BLU WIRE POWER SUPPLY TRANSFORMER RED WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE STEERING WHEEL AIR BAG COIL SUPPLY VOLTAGE 1 SW SIG UNDERHOOD FUSE BLOCK UP/DOWN SW SIG VIO WIRE VIO/GRY WIRE VOLT REF WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WINDSHIELD FRONT VIEW CAMERA

BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM FT PRK AID DIS CONTROL FT PRK LH CORNER SENS FT PRK LH MID SENS FT PRK RH CORNER SENS FT PRK RH MID SENS GMLAN SERIAL DATA 2 GRN WIRE GRN/BRN WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LED DISABLE SIG LEFT FRONT SIDE PARKING ASSIST SENSOR LEFT MIDDLE FRONT PARKING ASSIST SENSOR LEFT OUTER FRONT PARKING ASSIST SENSOR LF SUPPLEMENTAL OBJ SENS SIG LOW SPEED GMLAN SERIAL DATA LR CON OBJ SENS SIG LR MIDDLE OBJ SENS SIG LR SUPPLEMENTAL OBJECT SENS SIG OBJECT SENS CTRL OBJECT SENS LOW REF PARKING ASSIST CONTROL MODULE POWER SUPPLY TRANSFORMER RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RF SUPPLEMENTAL OBJ SENS SIG RIGHT FRONT SIDE PARKING ASSIST SENSOR RIGHT MIDDLE FRONT PARKING ASSIST SENSOR RIGHT OUTER FRONT PARKING ASSIST SENSOR RR CORNER OBJ SENS SIG RR MIDDLE OBJ SENS SIG RR SUPPLEMENTAL OBJECT SENS SIG SENS LOW REF SERIAL DATA COMMUNICATION ENABLE SUPPLY VOLTAGE 1 UNDERHOOD FUSE BLOCK VIO/GRY WIRE VIO/WHT WIRE W/O INTEGRATED BRAKE ASSIST WHT WIRE WHT/BLU WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

BATT POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BOLSTER CTRL RTN BOLSTER PMP CTRL COMPUTER DATA LINES SYSTEM DRIVER SEAT MEMORY CONTROL MODULE GRN WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES LOGIC LOW SPD GMLAN SERIAL DATA MEM SEAT SW SET SIG MEM SEAT SW SIG (1) MEM SW LOW REF PASSENGER SEAT BOLSTER MEMORY CONTROL MODULE PASSENGER SEAT LUMBAR/ BOLSTER PUMP PASSENGER SEAT MASSAGE SWITCH PASSENGER SEAT RECLINE MOTOR RED/BLU WIRE RED/GRY WIRE SER DATA BUS 16 UNDERHOOD FUSE BLOCK WHT WIRE

BATT POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER SEAT MEMORY SWITCH FRONT VERTICAL MTR DOWN CTRL FRONT VERTICAL MTR UP CTRL GMLAN SERIAL DATA GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE HORIZONTAL MTR FORWARD CTRL HORIZONTAL MTR REARWARD CTRL HOT AT ALL TIMES LOGIC PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT FRONT VERTICAL MOTOR PASSENGER SEAT HORIZONTAL MOTOR PASSENGER SEAT MEMORY CONTROL MODULE PASSENGER SEAT REAR VERTICAL MOTOR REAR VERTICAL MTR DOWN CTRL REAR VERTICAL MTR UP CTRL RECLINE MTR FORWARD CTRL RECLINE MTR REARWARD CTRL RED/BLU WIRE RED/GRY WIRE SERIAL DATA BUS 16 SET- UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLU WIRE YEL/WHT WIRE

ACCY WAKEUP SER DATA AUTO STOP START INDICATOR CTRL AUTO STOP START SW SIG BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (ENGINE COMPT, RIGHT SIDE OF BATTERY) GRN WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 3 HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) 1 INDICATOR DIMMING CTRL HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW START LED SIG IGNITION MODE SWITCH INSTRUMENT PANEL FUSE BLOCK KEYLESS ENTRY CONTROL MODULE (FRONT OF CENTER FLOOR CONSOLE) LOW SPD GMLAN SERIAL DATA PASSIVE START SW 2 LOW REF PASSIVE START SW SIG 2 POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (UNDER FRONT OF CENTER FLOOR CONSOLE) RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOLT SIG GND STARTER ENABLE RLY CTRL STARTER PINION SOL RLY CTRL UNDERHOOD FUSE BLOCK VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE YEL/BLK WIRE YEL/VIO WIRE